Martin Carthy plays in a wide range of styles as most people who like music do - an example - it's just music. Who knows, perhaps he just chooses to use his voice as he chooses. Sometimes people generalise. They could pick up the clip in this post and make a host of assumptions - which might be right or wrong.

To me it is an example of diversity.

The Bob Copper story with Taj Mahal and the Watersons is in the same sort of league.